CORDS: Automatic Generation of Correlation Statistics in DB2

Summary: CORDS automatically discovers correlations and soft FDs between columns to improve DB2 query optimization. Scalable discovery, visual graph outputs, and ranking by impact; yields targeted statistics that speed plans by orders of magnitude. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 9100
Venue: VLDB
Year: 2004
Pagerank: 4.6875371e-05
Overall Rank: 7,653 | 46.76%
DOI: -

Incoming Non-self Citations Over Time

Authors

Incoming Citations (Sorted by Pagerank)

Showing 2 of 2 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
2,549	GORDIAN: Efficient and Scalable Discovery of Composite Keys	2006	VLDB	8.5641554e-05
6,810	Record Linkage with Uniqueness Constraints and Erroneous Values	2010	VLDB	4.9203397e-05

Outgoing Citations (Sorted by Pagerank)

Showing 1 of 1 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank	Cited Paper	Year	Venue	Pagerank
224	CORDS: Automatic Discovery of Correlations and Soft Functional Dependencies	2004	SIGMOD	0.00032746205

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